« previous next »
« previous next »
 

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Placenta previa. The condition is caused by the development of the placenta over the cervical canal, Placenta previa. The condition is caused by the development of the placenta over the cervical canal,
Viruses must infect a host cell to grow and reproduce Viruses must infect a host cell to grow and reproduce
Some viruses, such as the tobacco mosaic virus, use RNA as their genetic material Some viruses, such as the tobacco mosaic virus, use RNA as their genetic material
Severe hash is almost always caused by cylinder misfire conditions. Severe hash is almost always caused by cylinder misfire conditions.
Negative reading oxygen sensor voltage can be caused by several problems. Negative reading oxygen sensor voltage can be caused by several problems.
Disorders and conditions that can be caused or aggravated by stress Disorders and conditions that can be caused or aggravated by stress
Video: Covalent bonds - role in the body

For a complete list of videos, visit our video library